Public domain
Key Science Instrument Installed into Webb Structure
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
Engineers are checking to make sure that MIRI is precisely positioned with the ISIM as it slides into position. They have to make sure it's installed exactly where it needs to be within the width of a thin human hair. Visible is MIRI's pickoff mirror, which is the protrusion on the right side of the instrument that looks like a periscope on its side. This is where MIRI grabs light coming from the telescope optics.
NASA Image and Video Library’s own descriptionCredit lineKey Science Instrument Installed into Webb Structure. NASA/GSFC, 2017-12-08. Public domain. ID: GSFC_20171208_Archive_e001494.
